Machine tool electrical spindle reliability testing stand centering adjusting device
A technology of centering adjustment and electric spindle, which is applied in the testing of machine gears/transmission mechanisms, etc., can solve problems such as difficulty in increasing speed, inability to detect misalignment, and exacerbated bearing life, so as to avoid reduction in stiffness and natural frequency and improve versatility And flexibility, the effect of increasing the test speed
Active Publication Date: 2015-08-12
JILIN UNIV
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Problems solved by technology
For machine tool high-speed motorized spindle reliability test bench, since the motorized spindle under test rotates at tens of thousands of revolutions per minute, the dynamometer that provides simulated cutting torque for the motorized spindle under test is connected to the motorized spindle under test through a coupling , the misalignment between the dynamometer and the electric spindle under test will not only increase the vibration of the electric spindle under test and the dynamometer, reduce the bearing life and make it difficult to increase the
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[0033] The present invention will be described in detail below in conjunction with the drawings:
[0034] Refer to figure 1 , The centering adjustment device of the machine tool electric spindle reliability test bench, including a ground iron 2, a control cabinet 1 and a dynamometer 7 that loads the simulated cutting torque for the tested electric spindle 10, the tested electric spindle 10 is the machine tool electric spindle The high-speed electric spindle that needs to be tested in the reliability test. The input shaft of the dynamometer 7 is connected with the measured electric spindle 10 through the elastic diaphragm coupling 8 and the coaxial key. It also includes the rotary table 3, the XZ table 4, and the lifting Table 6 and tilting table 5;
[0035] Refer to figure 1 , figure 2 ,with Figure 5 , The rotary table base 11 at the bottom end of the rotary table 3 has long holes processed on both sides, which are fixed on the right side of the ground iron 2 by T-bolts and nuts,...
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The invention aims to solve technical problems so as to eliminate harmful influences that misalignment generates additional force, torque, vibration and the like on a to-be-tested electrical spindle in the machine tool electrical spindle reliability testing, and provides a machine tool electrical spindle reliability testing stand centering adjusting device. The machine tool electrical spindle reliability testing stand centering adjusting device comprises horizon iron, a control cabinet and a dynamometer which is used for loading simulated cutting torque on a to-be-tested electrical spindle. An input shaft of the dynamometer is in coaxial key joint with the to-be-tested electrical spindle through an elastic membrane shaft coupling. The machine tool electrical spindle reliability testing stand centering adjusting device is characterized by also comprising a rotating table, an X-Z working table, a lifting platform and a pitching working table. The machine tool electrical spindle reliability testing stand centering adjusting device can timely adjust five degree of freedom of any type of misalignment, eliminates harmful influences caused by misalignment between the to-be-tested electrical spindle and the input shaft of the dynamometer, is suitable for different types of machine tool electrical spindles and mechanical spindles and other equipment with high misalignment error requirements, and has high versatility and flexibility.
Description
Technical field [0001] The invention belongs to the field of mechanical test equipment, and relates to a device for adjusting the alignment between a dynamometer and a measured electric spindle in a reliability test of a high-speed electric spindle of a machine tool. Background technique [0002] Rotor failure in rotating machinery is an important issue related to the production safety of the national economy. Misalignment failures account for more than 60% of rotor system failures. Most rotating machinery is composed of a driving machine and a driven machine. The torque is transmitted through various couplings. The coupling is caused by factors such as coupling processing and installation errors, rotor deformation, bearing misalignment, and frame height deviation. There are three types of misalignment in the device: parallel misalignment, angular misalignment, and parallel angular misalignment. The movement of the rotor in the misaligned state can cause mechanical vibration, be...
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Inventor 杨兆军刘国飞陈菲侯超杨川贵冉巍王松朱明民李圳阚英男
Owner JILIN UNIV
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